qemu-aarch64 $program  > $file doesn't pipe output to file in 2.12.0

Running qemu-aarch64 $program > $file doesn't pipe anything to $file. The file is created but empty.

qemu-aarch64 --help > $file works, so piping output in my system seems to work.
qemu-x86_64 $program > $file works, too.

I'm running version 2.12.0 build from source with ./configure && make

Output of uname -a:
Linux zhostname>  4.4.0-101-generic #124-Ubuntu SMP Fri Nov 10 18:29:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux